Spring-bumper.



q. H. SAGER.- SPRING BUMPER.

APPHCATIOTJ FILED APR-M1916.

i aiented Dec. 12, 1916 UNITED STATES PATENT ornron.

JAMES H. SAGER, OF ROCHESTER, NEW YORK, ASSIGNOR TO J. H. SAGEB GOMYANY, OF ROCHESTER NEW YORK, A CORPORATION OF NEW YORK.

srnme-eimrnn.

Specification of Letters Patent. Patented Dec. 12, 191,

Application flied April 1, 1916. Serial K0. 88,839.

To all whom it m concern:

Be it known that I, JAMES H. Sacra, a

citizen of the UnitedStates, and resident of Rochester, in the county of Monroe'and State of New York; have invented certain new and useful Improvements in Spring- Bumpers, of which the following is a specifividefla simple andinexpensive construction I erably extend forwardly 6' is deflect d forwardlry' in which an auxiliary or sup 'ilementalresisting means is brought into action after the bumper has yielded to a certain extent. T these and other ends-theinvention con sists of certain parts and combinations of parts all of which will hereinafter described, the novel features being pointed out in the appended claims. I

In the drawings:-'Figure 1 is a plan view of abumperconstructed in accordance \\'ith the present-invention; Fig. 2 is a section on the line o-a -o Fig. 1; Fig. 3 is a )t]Sl)8('i,l\'P view of the 'uinper; and Fig 4 is a horizontal sectional view through the connection between the two spring bars.

c Referring more particularly to the drawings, 1 indicates the longitudinal frame bars of' a motor; vehicle to which attaching brackets 2 are secured in any suitable 111R!!- nor. as, for instance, by means of U-clninps 3lpassed through the bracketand about the vehicle framebars 1. These brackets preffrom the frame bars and have enlarged ends 4 carrying U- shnped 'clainpsh. To these clamps is secured a resilient rear spring tempered steel, the clamps engaging the rear barat points spaced from the ends of the latter. Between the supplemental 0r auxiliory impocbreceivmg bar 6 formed preferably of clamps the bar at Mo provide a portion, as will be hereinafter described, and beyond the attaching brackets or clamps the ends 8 ofthe near bar enc oach-bent on an ogee curve forming a resilient portion to which the front bar 9 is secured.

The front bar is preferably formed of spring tempered steel and is normally straight throughout the greater portion of its length but has the end portions 10 do flee-ted rearwardly and secured to the free ends of the rear bar (3. In. this instance the rear bar is bent at each end to form an eye or sleeve 11 and about this sleeve or eve the adjacent and of the front bar 9 is bent at 19,.-

A bolt 13 passes through each sleeve 12 and has its head-and nut large enough to project over the sleeve portion 12 of the front bar, thus securing the two bars together and atthe-$211119- time permitting such end of the front bar toturn on the sleeve 1L \Yhen'a light blow is received by the front l):\]., the latter bends or'fieXe-s inwardly be" tween its ends to a degree corresponding to the blow and, at the same time, the resilient ends 8 of the rear bar yield to permit this flexing. For-heavy blows, the front car 5,- will flex or bend rearwardly until it engages the foraardly-deflected portion of the rear bar, which will then act as an auxiliary or so iplement-al. bumper:

ron: the foregoing, it will be. seen that there has been provided abumper for motor vehicles which will absorb shocks withont the use of coil springs or ides on which the bumper moves A resilient 'orspring steel bar is employed which flexes between its ends, the latter being resiliently s'np ported. These resilient supports-are in the form of yielding ends on a second or rear ,bar which is so formed as to act as a sup plemen'tal. or auxiliary ibumper'afiier the -n 1a'inimpactd'eceiving portion has beenflexed to a certain degree.

WhstI claim as to secure by Letters mm; is:-

.'1. A bumper-for motor vehicles comprisingj a iesilicnt front bury a resilient rear bar attached at its ends to ends L and deflected forwardly between its ends for engagement by the front bar,

invention and desire t the front bar the forwardly deflected portion being free 0f the-front bar, and attaching Markets svuln'od ('0 the rear bar in spaced mint-inn to the ends of the latter and on upposiua sidus u'l 'the 'lni'wzii-Lliy 5 dufloctvll lmrtiun.

2. A bumper for motmvvhicles ('mnprisin Lwo flexible burs 0110 in advance of the may ha 1 other. the HON bar being supported by the and the rear lmi' having :1 supplemental impact receiving pm'tiun free of said 10 front lml' but ei'lgagod by the latter after said front bur'has [)(QILIJQIHL reanvzudly.

' J A MES 11. SAGER. 

